Add run_all_model script

examples/workflow_by_code.ipynb

@@ -1,5 +1,15 @@
 {
  "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "#  Copyright (c) Microsoft Corporation.\n",
+    "#  Licensed under the MIT License."
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -13,7 +23,7 @@
     "import pandas as pd\n",
     "from qlib.config import REG_CN\n",
     "from qlib.contrib.model.gbdt import LGBModel\n",
-    "from qlib.contrib.estimator.handler import Alpha158\n",
+    "from qlib.contrib.data.handler import Alpha158\n",
     "from qlib.contrib.strategy.strategy import TopkDropoutStrategy\n",
     "from qlib.contrib.evaluate import (\n",
     "    backtest as normal_backtest,\n",